• Anthony Seleen A

Single phase monoclinic ZrO2 nano crystals prepared by hydrothermal process. The products were processed from Zirconyl Nitrate Hydrate as the precursor. X-ray diffraction, Scanning Electron Microscopy, Fourier Transform Infrared Spectroscopy, Photo Luminescence and UV are studied exhaustively. The XRD patterns reveals as prepared ZrO2 have perfect monoclinic phase. The crystalline size is found to be approximately 9.5 nm. The average particle size displayed by the SEM is 35 nm. The observed vibrational bands at 418, 489, 733 cm confirms the monoclinic structure of as prepared ZrO2. The PL emission spectrum excited at 246 nm consist of intense band centered at 452 nm along with four weak emission bands 482 nm, 575 nm, 608 nm, 650 nm. Band gap of ZrO2 measured to be 4.7 eV.

Monoclinic ZrO2, Nano crystal, Hydrothermal, Band gap

"HYDROTHERMAL SYNTHESIS OF SINGLE PHASE MONOCLINIC ZrO2 NANO CRYSTALS: STRUCTURAL AND OPTICAL STUDIES", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 7, page no.470-473, July-2018, Available :http://www.jetir.org/papers/JETIR1807A70.pdf

"HYDROTHERMAL SYNTHESIS OF SINGLE PHASE MONOCLINIC ZrO2 NANO CRYSTALS: STRUCTURAL AND OPTICAL STUDIES", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 7, page no. pp470-473, July-2018, Available at : http://www.jetir.org/papers/JETIR1807A70.pdf